November 2019
Beginner to intermediate
470 pages
11h 59m
English
Content preview from Mastering PostgreSQL 12 - Third Edition
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Adjusting durability
In this chapter, we have seen that data is either replicated synchronously or asynchronously. However, this is not a global thing. To ensure good performance, PostgreSQL allows us to configure things in a very flexible way. It is possible to replicate everything synchronously or asynchronously, but in many cases we might want to do things in a more fine-grained way. This is exactly when the synchronous_commit setting is needed.
Assuming that synchronous replication, the application_name setting, as well as the synchronous_standby_names setting in the postgresql.conf file have been configured, the synchronous_commit setting will offer the following options:
- off: This is basically a asynchronous replication. WAL won't ...
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